US EPA

1227063 

Journal Article 

A new method of low-temperature methanol synthesis on Cu/ZnO/Al2O3 catalysts from CO/CO2/H2 

Yang, R; Yu, X; Zhang, Yi; Li, W; Tsubaki, N 

2008 

1 

Fuel
ISSN: 0016-2361
EISSN: 1873-7153 

Elsevier BV 

87 

4-5 (Apr. 2008) 

443-450 

10.1016/j.fuel.2007.06.020 

WOS:000253332200004 

A new synthesis method of low-temperature methanol proceeded on Cu/ZnO/Al2O3 catalysts from CO/CO2/H2 using 2-butanol as promoters. The Cu/ZnO/Al2O3 catalysts were prepared by co-impregnation of r-Al2O3 with an aqueous solution of copper nitrate and zinc nitrate. The total carbon turnover frequency (TOF), the yield and selectivity of methanol were the highest by using the Cu/ZnO/Al2O3 catalyst with copper loading of 5% and the Zn/Cu molar ratio of 1/1, which precursor were not calcined, and reduced at 493K. The activity of the catalysts increased due to the presence of the CuO/ZnO phase in the oxidized form of impregnation Cu/ZnO/Al2O3 catalysts. The active sites of the Cu/ZnO/Al2O3 catalyst for methanol synthesis are not only metallic Cu but also special sites such as the Cu-Zn site, i.e. metallic Cu and the Cu-Zn site work cooperatively to catalyze the methanol synthesis reaction. 

methanol; Cu/Zno/Al(2)o(3); Co/Co-2/H-2